I seem to recall that may have been against Norwood in the late 50's. Norwood centreman, Peter Koerner was in great form at the time.Amongst many attributes the great coaches have the ability to make players believe they are better than they are (John Cahill was a master at this, particularly in finals), make crucial moves that change games, eg Fos moving Geoff Motley from the centre to the half forward flank resulting in that player scoring 7 match winning goals in the 2nd half of a gf, or plucking players from virtual obscurity to perform a crucial role on the big day, eg Adrian Settre.
Kern has shown none of those attributes, his selections and match ups on any given day can unbalance the line up, and then he is either too late to do anything about it, or worse still does nothing but sit there with lips pursed and arms folded waiting for something to happen that more often than not doesn't, where the aforementioned would make moves to either gain an advantage or stop the oppo from getting one, and they would sometimes do that even before the ball was bounced to start the game.